JP5160636B2 - Pyrimidine derivatives and compositions as c-kit and PDGFR kinase inhibitors - Google Patents

Abstract

The invention provides a novel class of pyrimidine derivatives, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated kinase activity, particularly diseases or disorders that involve abnormal activation of c-kit, PDGFRα and PDGFRβ kinases.

Description

This application claims the benefit of priority over US Provisional Patent Application No. 60 / 916,035 filed May 4, 2007. The entire disclosure of this application is hereby incorporated by reference in its entirety for all purposes.

Background of the Invention
The present invention relates to novel compounds, pharmaceutical compositions comprising such compounds, and to the treatment of such compounds with diseases or disorders associated with abnormal or deregulated kinase activity, in particular c- kits, methods for use in treating or preventing a disease or disorder involving abnormal activation of PDGFRα and PDGFRβ kinases.

Background Protein kinases represent a large family of proteins that play a central role in the regulation of a wide variety of cellular processes and maintain control over cellular functions. Some non-limiting lists of these kinases include platelet derived growth factor receptor kinase (PDGF-R), nerve growth factor receptor, trkB, and fibroblast growth factor receptor FGFR3, B- Receptor tyrosine kinases such as RAF; non-receptor tyrosine kinases such as Abl and fusion kinases BCR-Abl, Lck, Bmx and c-src; and c-RAF, sgk, MAP kinase (eg, MKK4, MKK6) Etc.) and serine / threonine kinases such as SAPK2α and SAPK2β. Abnormal kinase activity has been observed in many disease states, including benign and malignant proliferative disorders, and diseases resulting from inappropriate activation of the immune and nervous systems.

  The novel compounds of the present invention are expected to inhibit the activity of one or more protein kinases, thereby being useful in the treatment of kinase related diseases.

［式中、
Ｌは、

から選択される、３個の窒素原子を含む５員のヘテロアリール環であり；
Ｒ_１、Ｒ_２ａおよびＲ_２ｂは、水素、Ｃ_３−８ヘテロシクロアルキル、Ｃ_１−４アルキル、Ｃ_１−４アルコキシ、ハロ置換されたＣ_１−４アルコキシ、ハロ置換されたＣ_１−４アルキル、−ＮＲ_１０Ｒ_１１、−ＯＸ_１Ｒ_８（ここで、Ｘ_１は、結合およびＣ_１−４アルキレンから選択され；Ｒ_８は、Ｃ_３−１２シクロアルキルである。）から各々独立して選択されるか；またはＲ_１とＲ_２ａまたはＲ_１とＲ_２ｂは、Ｒ_１およびＲ_２ａまたはＲ_２ｂが結合している炭素原子と一体となってフェニルを形成し（すなわち、マーカッシュ構造のピリジル環がＲ_１／Ｒ_２ａまたはＲ_１／Ｒ_２ｂから形成されたフェニル環に縮合し、それによって、キノリニルまたはイソキノリニル環系を作り出す。）；Ｒ_１０およびＲ_１１は、水素、Ｃ_１−４アルキル、Ｃ_１−４アルコキシ、ハロ置換されたＣ_１−４アルコキシ、ハロ置換されたＣ_１−４アルキル、Ｃ_３−８ヘテロシクロアルキル、Ｃ_１−１０ヘテロアリールから独立して選択されるか；またはＲ_１０とＲ_１１は、Ｒ_１０およびＲ_１１が両方結合している窒素と一体となってＣ_３−８ヘテロシクロアルキルまたはＣ_１−１０ヘテロアリールを形成し；
Ｒ_３は、Ｃ_６−１０アリール、Ｃ_１−１０ヘテロアリール、Ｃ_３−１２シクロアルキルおよびＣ_３−８ヘテロシクロアルキルから選択され；ここで、Ｒ_３の該アリール、ヘテロアリール、シクロアルキルまたはヘテロシクロアルキルは、水素、ハロ、シアノ、Ｃ_１−６アルキル、Ｃ_１−６アルコキシ、ハロ置換されたＣ_１−６アルキル、ハロ置換されたＣ_１−６アルコキシ、Ｃ_６−１０アリール−Ｃ_０−４アルキル、ヘテロアリール、ヘテロシクリル、−Ｘ_２ＮＲ_５ａＲ_５ｂ、−Ｘ_２ＮＲ_５ａＯＲ５_ｂ、−Ｘ_２Ｃ(Ｏ)Ｒ_５ａ、−Ｘ_２Ｓ(Ｏ)_０−２Ｒ_５ａ、−Ｘ_２ＯＸ_３Ｒ_５ａ、−Ｘ_２Ｒ_５ａ、−Ｘ_２Ｃ(Ｏ)ＯＲ_５ａ、−Ｘ_２ＯＲ_５ａおよび−Ｘ_２ＯＸ_３ＯＲ_５ａから独立して選択される１〜３個のラジカルで置換されており；ここで、Ｘ_２およびＸ_３は、結合およびＣ_１−４アルキレンから独立して選択され；そしてＲ_５ａおよびＲ_５ｂは、水素、Ｃ_１−６アルキル、Ｃ_６−１０アリール、Ｃ_３−１２シクロアルキル、Ｃ_１−１０ヘテロアリールおよびＣ_３−１２ヘテロシクロアルキルから各々独立して選択され；
ここで、Ｒ_３の該アリール、シクロアルキル、ヘテロアリールまたはヘテロシクロアルキル置換基は、所望により、ハロ、ヒドロキシ、シアノ、Ｃ_１−６アルキル、Ｃ_１−６アルコキシ、ハロ置換されたＣ_１−６アルキル、ハロ置換されたＣ_１−６アルコキシ、−Ｘ_４ＯＲ_６、−Ｘ_４Ｃ(Ｏ)ＯＲ_６、−Ｘ_４Ｃ(Ｏ)ＮＲ_６Ｒ_６および−Ｘ_４Ｒ_６から独立して選択される１〜３個のラジカルでさらに置換され得て；ここで、Ｘ_４は、結合およびＣ_１−４アルキレンから選択され；そしてＲ_６は、水素、Ｃ_１−６アルキルおよびＣ_３−１２ヘテロシクロアルキルから選択される。］
の化合物：ならびにＮ−オキシド誘導体、プロドラッグ誘導体、保護誘導体、個々の異性体およびその異性体の混合物；ならびにそのような化合物の薬学的に許容される塩および溶媒和物（例えば、水和物）を提供する。 SUMMARY OF THE INVENTION In one aspect, the present invention provides compounds of formula I:

[Where:
L is

A 5-membered heteroaryl ring containing 3 nitrogen atoms selected from:
R ₁ , R _2a and R _2b are hydrogen, C _3-8 heterocycloalkyl, C _1-4 alkyl, C _1-4 alkoxy, halo substituted C _1-4 alkoxy, halo substituted C _1-4 Each independently from alkyl, —NR ₁₀ R ₁₁ , —OX ₁ R _8, wherein X ₁ is selected from a bond and C _1-4 alkylene; R ₈ is C _3-12 cycloalkyl. Or R ₁ and R _2a or R ₁ and R _2b together with the carbon atom to which R ₁ and R _2a or R _2b are bonded form a phenyl (ie, a Markush structure pyridyl ring is fused to a phenyl ring formed from _R 1 _{/ R 2a} or _R 1 _{/ R 2b,} create it by, quinolinyl or isoquinolinyl ring _{system);. R 10} and _{R 11,} Independently _{hydrogen, C 1-4 alkyl, C 1-4} alkoxy, halo-substituted _{C 1-4} alkoxy, halo-substituted _{C 1-4 alkyl, C 3-8 heterocycloalkyl,} the _{C 1-10} heteroaryl Or R ₁₀ and R ₁₁ together with the nitrogen to which both R ₁₀ and R ₁₁ are attached form a C _3-8 heterocycloalkyl or C _1-10 heteroaryl;
R ₃ is selected from C _6-10 aryl, C _1-10 heteroaryl, C _3-12 cycloalkyl and C _3-8 heterocycloalkyl; wherein said aryl of R ₃ , heteroaryl, cycloalkyl or Heterocycloalkyl is hydrogen, halo, cyano, C _1-6 alkyl, C _1-6 alkoxy, halo substituted C _1-6 alkyl, halo substituted C _1-6 alkoxy, C _6-10 aryl-C _0-4 alkyl, heteroaryl, _{heterocyclyl, -X 2 NR 5a R 5b,} -X 2 NR 5a OR5 b, -X 2 C (O) R 5a, -X 2 S (O) 0-2 R 5a, - _{X 2 OX 3 R 5a, -X} 2 R 5a, -X 2 C (O) oR 5a, 1~3 amino Raj independently selected from -X 2 _{oR 5a} and _-X 2 _OX 3 _{oR 5a} Is substituted by Le; wherein, _{X 2} and _{X 3} are independently selected from a bond and _{C 1-4} alkylene; and _{R 5a} and _{R 5b} is _{hydrogen, C 1-6 alkyl, C 6-} Each independently selected from ₁₀ aryl, C _3-12 cycloalkyl, C _1-10 heteroaryl and C _3-12 heterocycloalkyl;
Wherein the aryl, cycloalkyl, heteroaryl or heterocycloalkyl substituent of R ₃ is optionally halo, hydroxy, cyano, C _1-6 alkyl, C _1-6 alkoxy, halo substituted C _1- Independently from ₆ alkyl, halo substituted C _1-6 alkoxy, —X ₄ OR ₆ , —X ₄ C (O) OR ₆ , —X ₄ C (O) NR ₆ R ₆ and —X ₄ R ₆ May be further substituted with 1 to 3 radicals selected; wherein X ₄ is selected from a bond and C _1-4 alkylene; and R ₆ is hydrogen, C _1-6 alkyl and C ₃₋ Selected from ₁₂ heterocycloalkyl. ]
And N-oxide derivatives, prodrug derivatives, protected derivatives, individual isomers and mixtures of isomers thereof; and pharmaceutically acceptable salts and solvates (eg, hydrates) of such compounds )I will provide a.

  In a second aspect, the present invention relates to a compound of formula I or an N-oxide derivative thereof, individual isomers and mixtures of isomers mixed with one or more suitable excipients; A pharmaceutical composition comprising the salt is provided.

  In a third aspect, the present invention treats diseases in which inhibition of kinase activity in animals, particularly c-kit, PDGFRα and / or PDGFRβ activity, can prevent, inhibit or ameliorate disease pathology and / or symptoms. Administering to the animal a therapeutically effective amount of a compound of formula I or an N-oxide derivative thereof, individual isomers and mixtures of isomers, or pharmaceutically acceptable salts thereof. A method comprising:

  In a fourth aspect, the invention relates to formulas in the manufacture of a medicament for treating a disease in which kinase activity, particularly c-kit, PDGFRα and / or PDGFRβ activity in an animal contributes to the disease pathology and / or symptoms. Use of a compound of I is provided.

  In a fifth aspect, the present invention provides for the preparation of compounds of formula I and their N-oxide derivatives, prodrug derivatives, protected derivatives, individual isomers and mixtures of isomers, and pharmaceutically acceptable salts thereof. Provide a way.

Detailed Description of the Invention
Definitions “Alkyl” as one group and as another group, eg, halo-substituted alkyl and alkoxy structural elements, can be either linear or branched. C _1-4 alkoxy includes methoxy, ethoxy and the like. Halo-substituted alkyl includes trifluoromethyl, pentafluoroethyl, and the like.

“Aryl” means a monocyclic or fused bicyclic aromatic ring assembly containing 6 to 10 ring carbon atoms. For example, C _6-10 aryl as used in this application includes, but is not limited to, phenyl or naphthyl, preferably phenyl. “Arylene” means a divalent radical derived from an aryl group.

“Heteroaryl” refers to —O—, —N═, —NR—, —C (O) —, —S—, —S (O) — or —S (O) ₂ — (where R is A hydrogen, C _1-4 alkyl or nitrogen protecting group.) 5 to 15 membered unsaturated ring system containing 1 to 3 heteroatoms independently selected from: For example, C _1-10 heteroaryl ("C _1-10 " meaning between 1 and 10 carbon atoms is present in the ring system) is limited when used in this application. Pyrazolyl, pyridinyl, indolyl, thiazolyl, 3-oxo-3,4-dihydro-2H-benzo [b] [1,4] oxazin-6-yl, furanyl, benzo [b] furanyl, pyrrolyl, 1H-indazolyl, imidazo [1,2-a] pyridin-3-yl, oxazolyl, benzo [d] thiazol-6-yl, 1H-benzo [d] [1,2,3] triazol-5-yl, quinolinyl 2,3-dihydrobenzofuran-5-yl, 1H-indolyl, 3,4-dihydro-2H-pyrano [2,3-b] pyridinyl and 2,3-dihydrofuro [2,3-b] pyridinyl, 3- Oxo-3,4-di Mud -2H- benzo [b] [1,4] oxazin-7-yl and the like.

“Cycloalkyl” means a saturated or partially unsaturated, monocyclic, fused bicyclic or bridged polycyclic ring assembly containing the indicated number of ring atoms. For example, C _3-10 cycloalkyl includes cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, and the like.

“Heterocycloalkyl” refers to —O—, —N═, —NR—, —C (O) —, —S—, —S (O) — or —S (O) ₂ — (where R is A 3 to 8 membered saturated or partially unsaturated ring system containing 1 to 3 heteroatoms independently selected from: hydrogen, C _1-4 alkyl or nitrogen protecting group. To do. For example, C _3-8 heterocycloalkyl as used in this application to describe compounds of the present invention includes, but is not limited to, morpholino, pyrrolidinyl, azepanyl, piperidinyl, isoquinolinyl, tetrahydrofuranyl, pyrrolidinyl Pyrrolidinyl-2-one, piperazinyl, piperidinylone, 1,4-dioxa-8-aza-spiro [4.5] dec-8-yl and the like.

  “Halogen” (or halo) preferably represents chloro or fluoro, but may also be bromo or iodo.

  The “kinase panel” is Abl (human), Abl (T315I), JAK2, JAK3, ALK, JNK1α1, ALK4, KDR, Aurora-A, Lck, Blk, MAPK1, Bmx, MAPKAP-K2, BRK, MEK1, CaMKII ( Rat), Met, CDK1 / cyclin B, p70S6K, CHK2, PAK2, CK1, PDGFRα, CK2, PDK1, c-kit, Pim-2, c-RAF, PKA (h), CSK, PKBα, cSrc, PKCα, DYRK2 , Plk3, EGFR, ROCK-I, Fes, Ron, FGFR3, Ros, Flt3, SAPK2α, Fms, SGK, Fyn, SIK, GSK3β, Syk, IGF-1R, Tie-2, IKKβ, TrKB, IR, WNK3, IRAK4 , ZAP-70, ITK, AMPK (rat), LIMK1, Rsk2, Axl, LK B1, SAPK2β, BrSK2, Lyn (h), SAPK3, BTK, MAPKAP-K3, SAPK4, CaMKIV, MARK1, Snk, CDK2 / cyclin A, MINK, SRPK1, CDK3 / cyclin E, MKK4 (m), TAK1, CD p25, MKK6 (h), TBK1, CDK6 / cyclin D3, MLCK, TrkA, CDK7 / cyclin H / MAT1, MRCKβ, TSSK1, CHK1, MSK1, Yes, CK1d, MST2, ZIPK, c-kit (D816V), MuSK, DAPK2, NEK2, DDR2, NEK6, DMPK, PAK4, DRAK1, PAR-1Bα, EphA1, PDGFRβ, EphA2, Pim-1, EphA5, PKBβ, EphB2, PKCCI, EphB4, PKCδ, FGFR1, PKC , PKCθ, FGFR4, PKD2, Fgr, PKG1β, Flt1, PRK2, Hck, PYK2, HIPK2, Ret, IKKα, RIPK2, IRR, ROCK-II (human), JNK2α2, Rse, JNK3, Rsk1 (h), PI3 K It is a list of kinases including PI3 Kδ and PI3-Kβ. The compounds of the invention are screened against a kinase panel (wild type and / or mutants thereof) and inhibit at least one activity of the panel member.

  “Treat”, “treating” and “treatment” refer to a method of alleviating or ameliorating a disease and / or its attendant symptoms.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The c-kit gene encodes a receptor tyrosine kinase and the ligand for the c-kit receptor is called stem cell factor (SCF), which is the major growth factor for mast cell survival. The activity of the c-kit receptor protein tyrosine kinase is regulated in normal cells, and the normal functional activity of the c-kit gene product is normal hematopoiesis, melanogenesis, genetogenesis, and mast cell proliferation and Essential for maintaining differentiation. Mutations that cause constitutive activation of c-kit kinase activity in the absence of SCF binding are involved in a wide variety of diseases, from mastocytosis to human malignancies.

から選択され；
Ｒ_１、Ｒ_２ａおよびＲ_２ｂは、水素、Ｃ_３−８ヘテロシクロアルキル、Ｃ_１−４アルキル、Ｃ_１−４アルコキシ、ハロ置換されたＣ_１−４アルコキシ、ハロ置換されたＣ_１−４アルキル、−ＮＲ_１０Ｒ_１１、−ＯＸ_１Ｒ_８（ここで、Ｘ_１は、結合およびＣ_１−４アルキレンから選択され；Ｒ_８は、Ｃ_３−１２シクロアルキルである。）から独立して選択されるか；またはＲ_１とＲ_２ａまたはＲ_１とＲ_２ｂは、Ｒ_１およびＲ_２ａまたはＲ_１およびＲ_２ｂが結合している炭素原子と一体となってフェニルを形成し；Ｒ_１０およびＲ_１１は、水素、Ｃ_１−４アルキル、Ｃ_１−４アルコキシ、ハロ置換されたＣ_１−４アルコキシ、ハロ置換されたＣ_１−４アルキル、Ｃ_３−８ヘテロシクロアルキル、Ｃ_１−１０ヘテロアリールから独立して選択されるか；またはＲ_１０とＲ_１１は、Ｒ_１０およびＲ_１１が両方結合している窒素と一体となってＣ_３−８ヘテロシクロアルキルまたはＣ_１−１０ヘテロアリールを形成し；
Ｒ_３は、Ｃ_６−１０アリールおよびＣ_１−１０ヘテロアリールから選択され；ここで、該アリールまたはヘテロアリールは、ハロ、シアノ、Ｃ_１−６アルキル、Ｃ_１−６アルコキシ、ハロ置換されたＣ_１−６アルキル、ハロ置換されたＣ_１−６アルコキシ、Ｃ_６−１０アリール−Ｃ_０−４アルキル、ヘテロアリール、ヘテロシクリル、−Ｘ_２ＮＲ_５ａＲ_５ｂ、−Ｘ_２ＮＲ_５ａＯＲ_５ｂ、−Ｘ_２Ｃ(Ｏ)Ｒ_５ａ、−Ｘ_２Ｓ(Ｏ)_０−２Ｒ_５ａ、−Ｘ_２ＯＸ_３Ｒ_５ａ、−Ｘ_２Ｒ_５ａ、−Ｘ_２Ｃ(Ｏ)ＯＲ_５ａ、−Ｘ_２ＯＲ_５ａおよび−Ｘ_２ＯＸ_３ＯＲ_５ａから独立して選択される１〜３個のラジカルで置換されており；ここで、Ｘ_２およびＸ_３は、結合およびＣ_１−４アルキレンから独立して選択され；そしてＲ_５ａおよびＲ_５ｂは、水素、Ｃ_１−６アルキル、Ｃ_３−１２シクロアルキル、Ｃ_１−１０ヘテロアリールおよびＣ_３−１２ヘテロシクロアルキルから各々独立して選択され；
ここで、Ｒ_３の該アリール、シクロアルキル、ヘテロアリールまたはヘテロシクロアルキル置換基は、所望により、ハロ、ヒドロキシ、シアノ、Ｃ_１−６アルキル、Ｃ_１−６アルコキシ、ハロ置換されたＣ_１−６アルキル、ハロ置換されたＣ_１−６アルコキシ、−Ｘ_４ＯＲ_６、−Ｘ_４Ｃ(Ｏ)ＯＲ_６、−Ｘ_４Ｃ(Ｏ)ＮＲ_６Ｒ_６および−Ｘ_４Ｒ_６から独立して選択される１〜３個のラジカルでさらに置換され得て；ここで、Ｘ_４は、結合およびＣ_１−４アルキレンから選択され；そしてＲ_６は、水素、Ｃ_１−６アルキルおよびＣ_３−１２ヘテロシクロアルキルから選択される。 In one embodiment, with respect to compounds of formula I, L is

Selected from;
R ₁ , R _2a and R _2b are hydrogen, C _3-8 heterocycloalkyl, C _1-4 alkyl, C _1-4 alkoxy, halo substituted C _1-4 alkoxy, halo substituted C _1-4 Independently from alkyl, —NR ₁₀ R ₁₁ , —OX ₁ R _8, wherein X ₁ is selected from a bond and C _1-4 alkylene; R ₈ is C _3-12 cycloalkyl. Or R ₁ and R _2a or R ₁ and R _2b together with the carbon atom to which R ₁ and R _2a or R ₁ and R _2b are attached form phenyl; R ₁₀ and R ₁₁ is hydrogen, C _1-4 alkyl, C _1-4 alkoxy, halo-substituted C _1-4 alkoxy, halo-substituted C _1-4 alkyl, C _3-8 heterocycloalkyl, C _1-10 Heteroary Or R ₁₀ and R ₁₁ together with the nitrogen to which both R ₁₀ and R ₁₁ are attached, together with C _3-8 heterocycloalkyl or C _1-10 heteroaryl Forming;
R ₃ is selected from C _6-10 aryl and C _1-10 heteroaryl; wherein the aryl or heteroaryl is halo, cyano, C _1-6 alkyl, C _1-6 alkoxy, halo substituted C _1-6 alkyl, halo-substituted C _1-6 alkoxy, C _6-10 aryl-C _0-4 alkyl, heteroaryl, heterocyclyl, —X ₂ NR _5a R _5b , —X ₂ NR _5a OR _5b , — _{X 2 C (O) R 5a} , -X 2 S (O) 0-2 R 5a, -X 2 OX 3 R 5a, -X 2 R 5a, -X 2 C (O) OR 5a, -X 2 OR Substituted with 1 to 3 radicals independently selected from _5a and —X ₂ OX ₃ OR _5a ; wherein X ₂ and X ₃ are independently selected from a bond and C _1-4 alkylene is; and R _a and _{R 5b} is _{hydrogen, C 1-6 alkyl,} each independently selected from _{C 3-12 cycloalkyl, C 1-10} heteroaryl and _{C 3-12} heterocycloalkyl;
Wherein the aryl, cycloalkyl, heteroaryl or heterocycloalkyl substituent of R ₃ is optionally halo, hydroxy, cyano, C _1-6 alkyl, C _1-6 alkoxy, halo substituted C _1- Independently from ₆ alkyl, halo substituted C _1-6 alkoxy, —X ₄ OR ₆ , —X ₄ C (O) OR ₆ , —X ₄ C (O) NR ₆ R ₆ and —X ₄ R ₆ May be further substituted with 1 to 3 radicals selected; wherein X ₄ is selected from a bond and C _1-4 alkylene; and R ₆ is hydrogen, C _1-6 alkyl and C ₃₋ Selected from ₁₂ heterocycloalkyl.

In another embodiment, R ₁ is selected from hydrogen, pyrrolidinyl, morpholino, methoxy, 2-fluoro-ethoxy and methyl; R _2a and R _2b are hydrogen; or R ₁ and R _2a are R ₁ and Combined with the carbon atom to which R _2a is attached, forms a phenyl (ie, a Markush pyridyl ring is fused to the phenyl ring formed from R ₁ and R _2a , thereby creating an isoquinolinyl ring system. .)

In another embodiment, R ₃ is phenyl substituted with a group selected from difluoromethoxy, hydroxy-methyl, trifluoromethoxy, methyl-sulfonyl, methoxy and ethoxy; and from 2,3-dihydrobenzofuran-5-yl Selected.

  In another embodiment, the compound is {5- [5- (3-difluoromethoxy-phenyl) -2H- [1,2,4] triazol-3-yl] -2-methyl-phenyl}-(4-pyridine. -3-yl-pyrimidin-2-yl) -amine; N- (2-methyl-5- (5- (3- (trifluoromethoxy) phenyl) -1H-1,2,4-triazol-3-yl) ) Phenyl) -4- (pyridin-3-yl) pyrimidin-2-amine; N- (2-methyl-5- (5- (3- (methylsulfonyl) phenyl) -1H-1,2,4-triazole) -3-yl) phenyl) -4- (pyridin-3-yl) pyrimidin-2-amine; N- (5- (5- (3-methoxyphenyl) -1H-1,2,4-triazole-3- Yl) -2-methylphenyl) -4- (pyridin-3-yl) pyrimidin-2-amine; N- (5- (5- (3-e Toxiphenyl) -1H-1,2,4-triazol-3-yl) -2-methylphenyl) -4- (pyridin-3-yl) pyrimidin-2-amine; N- (5- (5- (2 , 3-Dihydrobenzofuran-5-yl) -1H-1,2,4-triazol-3-yl) -2-methylphenyl) -4- (pyridin-3-yl) pyrimidin-2-amine; N- ( 5- (5- (4- (Difluoromethoxy) phenyl) -1H-1,2,4-triazol-3-yl) -2-methylphenyl) -4- (pyridin-3-yl) pyrimidin-2-amine And (3- (3- (4-methyl-3- (4- (pyridin-3-yl) pyrimidin-2-ylamino) phenyl) -1H-1,2,4-triazol-5-yl) phenyl); Selected from methanol.

  In one aspect, the invention provides a method for treating a disease or condition modulated by c-kit and PDGFRα / β kinase receptor, comprising a compound of formula I, or a pharmaceutically acceptable salt or A method comprising administering a pharmaceutical composition is provided.

  Examples of c-kit and / or PDGFRα / β-mediated diseases or conditions that can be mediated using the compounds and compositions of the present invention include, but are not limited to, neoplastic disorders, allergic disorders , Inflammatory disorder, autoimmune disorder, graft-versus-host disease, malaria parasite related disease, mast cell related disease, metabolic syndrome, CNS related disorder, neurodegenerative disorder, pain state, substance abuse disorder, prion disease, cancer, Heart disease, fibrotic disease, idiopathic arterial hypertension (IPAH), or primary pulmonary hypertension (PPH) are included.

  Examples of mast cell-related diseases that can be treated using the compounds and compositions of the present invention include, but are not limited to, acne and acne, progressive ossifying fibrodysplasia (FOP). , Inflammation and tissue destruction induced by exposure to chemical or biological weapons (eg anthrax and sulfur mustard), cystic fibrosis, kidney disease, inflammatory myopathy, HIV, type II diabetes, cerebral ischemia, obesity Cytosis, drug dependence and withdrawal symptoms, CNS disorders, hair loss prevention and minimization, bacterial infection, interstitial cystitis, inflammatory bowel syndrome (IBS), inflammatory bowel disease (IBD), tumor angiogenesis, self Includes immune disease, inflammatory disease, multiple sclerosis (MS), allergic disorders (including asthma), and bone loss.

  Examples of neoplastic disorders that can be treated using the compounds and compositions of the present invention include, but are not limited to, mastocytosis, gastrointestinal stromal tumors, small cell lung cancer, non-small cell lung cancer, acute Includes myeloid leukemia, acute lymphocytic leukemia, myelodyplastic syndrome, chronic myelogenous leukemia, colorectal cancer, gastric cancer, testicular cancer, glioblastoma, or astrocytoma.

  Examples of allergic disorders that can be treated using the compounds and compositions of the present invention include, but are not limited to, asthma, allergic rhinitis, allergic sinusitis, anaphylaxis syndrome, hives, angioedema, Includes atopic dermatitis, allergic contact dermatitis, erythema multifonne, erythema multifonne, cutaneous necrotizing venulitis, dermatitis due to insect bites, or blood-sucking parasitic infections .

  Examples of inflammatory disorders that can be treated using the compounds and compositions of the present invention include, but are not limited to, rheumatoid arthritis, conjunctivitis, rheumatoid spondylitis, osteoarthritis, or gouty arthritis It is.

  Examples of autoimmune disorders that can be treated using the compounds and compositions of the present invention include, but are not limited to, multiple sclerosis, psoriasis, enteroinflammatory diseases, ulcerative colitis, Crohn's disease, Rheumatoid arthritis, polyarthritis, local or systemic scleroderma, systemic lupus erythematosus, discoid lupus erythematosis, skin lupus, dermatomyositis, polymyositis, Sjogren's syndrome, nodular panarteritis, self Includes immune bowel disease, or proliferative glomerulonephritis.

  Examples of graft-versus-host diseases that can be treated using the compounds and compositions of the present invention include, but are not limited to, kidney transplant, pancreas transplant, liver transplant, heart transplant, lung transplant, or Includes graft rejection by organ transplantation, such as bone marrow transplantation.

  Examples of metabolic syndrome that can be treated using the compounds and compositions of the present invention include, but are not limited to, type I diabetes, type II diabetes, or obesity.

  Examples of CNS-related disorders that can be treated using the compounds and compositions of the present invention include, but are not limited to, depression, dysthymic disorders, mood circulatory disorders, anorexia, bulimia, premenstrual Syndrome, postmenopausal syndrome, reduced mental function, poor concentration, pessimistic concerns, agitation, self-blame and decreased libido, anxiety disorder, mental disorder, or schizophrenia.

  Examples of depression conditions that can be treated using the compounds and compositions of the present invention include, but are not limited to, bipolar depression, severe or melancholic depression, atypical depression, refractory depression, or seasonality Depression is included. Examples of anxiety disorders that can be treated using the compounds and compositions of the present invention include, but are not limited to, anxiety associated with hyperventilation and cardiac arrhythmia, phobic disorder, obsessive compulsive disorder, post trauma Includes stress disorders, acute stress disorders, and generalized anxiety disorders. Examples of psychiatric disorders that can be treated using the compounds and compositions of the present invention include, but are not limited to, panic attacks, paranoid disorders, convertible disorders, phobias, mania, delirium, including psychosis Dissociative episodes, dissociative amnesia, dissociative episodes including dissociative fate and dissociative suicidal behavior, self-ignorance, violent or aggressive behavior, trauma, borderline personality, and paranoid schizophrenia, disorganized schizophrenia, tension Acute psychosis such as schizophrenia is included, including type schizophrenia and undifferentiated schizophrenia.

  Examples of neurodegenerative disorders that can be treated using the compounds and compositions of the present invention include, but are not limited to, Alzheimer's disease, Parkinson's disease, Huntington's disease, prion disease, motor neuron disease (MND), or Amyotrophic lateral sclerosis (ALS) is included.

  Examples of pain conditions that can be treated using the compounds and compositions of the present invention include, but are not limited to, acute pain, postoperative pain, chronic pain, nociceptive pain, cancer pain, neuropathy Sexual pain, or psychogenic pain syndrome.

  Examples of substance use disorders that can be treated using the compounds and compositions of the present invention include, but are not limited to, drug addiction, drug abuse, drug habituation, drug dependence, withdrawal syndrome, or overdose. Is included.

  Examples of cancers that can be treated using the compounds and compositions of the present invention include, but are not limited to, melanoma, gastrointestinal stromal tumor (GIST), colon cancer, small cell lung cancer, or other Solid tumors are included.

  Examples of fibrotic diseases that can be treated using the compounds and compositions of the present invention include, but are not limited to, hepatitis C (HCV), liver fibrosis, nonalcoholic steatohepatitis (NASH) Cirrhosis, scleroderma, pulmonary fibrosis, or myelofibrosis.

  In another aspect, the invention provides a method for treating a disease or condition modulated by c-kit kinase receptor and / or PDGFRα / β, comprising a compound of formula I, or a pharmaceutically acceptable salt thereof. A method comprising administering a salt or pharmaceutical composition.

Pharmacology and Utility The compounds of the present invention modulate the activity of kinases and are therefore useful for treating diseases or disorders where the kinase contributes to the disease pathology and / or symptoms. Examples of kinases that are inhibited by the compounds and compositions described herein and for which the methods described herein are useful include, but are not limited to, c-kit, PDGFRα, PDGFRβ, Lyn, MAPK14 (p38δ), ARG, BCR-Abl, BRK, EphB, Fms, Fyn, KDR, LCK, b-Raf, c-Raf, SAPK2, Src, Tie2 and TrkB kinase are included.

  Mast cells (MCs) are tissue elements derived from a particular hematopoietic stem cell subset that produce many different mediators, most of which have potent pro-inflammatory activity. Since MC is distributed in almost all body parts, excessive secretion of mediators by activating elements can lead to multiple organ failure. Thus, mast cells are a central player involved in many diseases. The present invention is a method for treating a mast cell-related disease, wherein a human in need of such treatment is administered a compound capable of depleting mast cells or a compound that inhibits mast cell degranulation. Relates to a method comprising: Such compounds may be selected from c-kit inhibitors, and more particularly non-toxic, selective and potent c-kit inhibitors. Preferably, the inhibitor is not capable of promoting IL-3-dependent cell death cultured in the presence of IL-3.

  Mast cell-related diseases include, but are not limited to, acne and acne (acne includes all forms of chronic skin inflammation, including those induced by acne). Hereditary disorder of connective tissue, known as traumatic ossifying fibrodysplasia (FOP), induced by exposure to chemical or biological weapons (eg, anthrax, sulfur mustard, etc.) Adverse effects of inflammation and tissue destruction; cystic fibrosis (hereditary disease of the lung, digestive and genital system); renal diseases such as acute nephritis syndrome, glomerulonephritis, renal amyloidosis, interstitial renal fibrosis ( The final common pathway leading to end-stage renal disease in various nephropathy); inflammatory myopathy, including myositis and muscular dystrophy; HIV (eg, depletion of HIV-infected mast cells is associated with HIV infection and related diseases) To treat type II diabetes, obesity and related disorders (mast cells are hyperglycemia, hypercholesterolemia, hypertension, endothelial dysfunction, insulin resistance, and Regulates many processes that contribute to the development of atherosclerosis, including vascular remodeling.); Cerebral ischemia; Mastocytosis (in various tissues, primarily in the skin and bone marrow, but in the spleen, liver, In the lymph nodes and in the gastrointestinal tract also a very heterogeneous group of disorders characterized by abnormal accumulation of mast cells); drug dependence and withdrawal symptoms (especially drug addiction, drug abuse, drug addictive, drug dependence) Withdrawal syndrome and overdose); CNS disorders (especially depression, schizophrenia, anxiety, migraine, memory loss, pain and neurodegenerative diseases); promoting hair growth (Including preventing and minimizing hair loss); bacterial infections (especially infections caused by FimH expressing bacteria); irritable bowel syndrome (IBS) and irritable bowel disease (IBD); interstitial Cystitis (especially chronic inflammation of the bladder wall resulting from tissue damage in the interstitial space inside the bladder); inflammatory bowel disease (usually four bowel diseases: Crohn's disease, ulcerative colitis, classification Tumor angiogenesis; autoimmune diseases (especially multiple sclerosis, ulcerative colitis, Crohn's disease, rheumatoid arthritis and polyarthritis, scleroderma, lupus erythematosus) Dermatomyositis, pemphigus, polymyositis, vasculitis and graft-versus-host disease); inflammatory diseases such as rheumatoid arthritis (RA); multiple sclerosis (MS); allergic disorders (especially asthma, Are Rheitis, allergic sinusitis, anaphylaxis syndrome, hives, angioedema, atopic dermatitis, allergic contact dermatitis, erythema nodosum, polymorphic erythema, cutaneous necrotizing venulitis and Insect bite dermatitis, bronchial asthma); nasal polyps; and bone loss.

  PDGF (platelet-derived growth factor) is a normal growth and also pathological cell growth, as seen in carcinogenesis and in diseases of vascular smooth muscle cells, such as in atherosclerosis and thrombosis It is a very common growth factor that plays an important role in both. The compounds of the present invention can inhibit PDGF receptor (PDGFR) activity and thus tumor diseases such as gliomas, sarcomas, prostate tumors, and colon, breast and ovarian tumors; hypereosinophilia Suitable for the treatment of fibrosis such as pulmonary fibrosis, liver fibrosis and scleroderma; pulmonary hypertension; and cardiovascular disease;

  The Ras-Raf-MEK-ERK signaling pathway mediates cellular responses to proliferation signals. Ras mutates to an oncogenic form in ˜15% human cancer. The Raf family belongs to the serine / threonine protein kinase and includes three members A-Raf, B-Raf and c-Raf (or Raf-1). The focus on Raf, the drug target, has focused on the relationship of Raf as a downstream effector of Ras. However, recent data suggest that B-Raf may have an important role in several tumorigenesis without the need for an activated Ras allele (Nature 417, 949-954 ( July 1, 2002) In particular, B-Raf mutations have been detected in most malignant melanomas.

  Current medical procedures for melanoma have limited effectiveness, particularly with respect to late stage melanoma. The compounds of the present invention also inhibit cellular processes involving b-Raf kinase, providing new therapeutic opportunities for the treatment of human cancer, especially for melanoma.

  The compounds of the present invention also inhibit cellular processes involving c-Raf kinase. c-Raf is activated by the ras oncogene that mutates in a wide variety of human cancers. Thus, inhibition of c-Raf kinase activity may provide a way to prevent ras-mediated tumor growth [Campbell, S. L., Oncogene, 17, 1395 (1998)].

  The compounds of the present invention are useful for treating non-malignant proliferative disorders such as atherosclerosis, thrombosis, psoriasis, scleroderma and fibrosis, and also for protecting stem cells. For example, it can be used to combat the hemotoxic effects of chemotherapeutic agents such as 5-fluoruracil and also in asthma.

  The compounds of the present invention have useful effects in the treatment of transplantation, for example, disorders resulting from allotransplantation, especially tissue rejection, eg, obstructive bronchiolitis (OB), ie, chronic rejection of allogeneic lung transplantation. Indicates. In contrast to non-OB patients, patients who are OB often show elevated PDGF levels in bronchoalveolar lavage fluid.

  The compounds of the present invention are also diseases associated with vascular smooth muscle cell migration and proliferation, where PDGF and PDGF-R also often play a role, such as restenosis and atherosclerosis. Is also effective. These effects and their consequences on vascular smooth muscle cell proliferation or migration in vitro and in vivo are investigated in vivo by administration of the compounds of the present invention and also on intimal thickening after mechanical injury. Can be demonstrated.

  The trk family of neurotrophic factor receptors (trkA, trkB, trkC) promotes survival, proliferation and differentiation of neural and non-neural tissues. TrkB protein is expressed in neuroendocrine cells in the small intestine and colon, in pancreatic alpha cells, in lymph nodes and spleen monocytes and macrophages, and in the granular layer of the epidermis (Shibayama and Koizumi, 1996). TrkB protein expression has been associated with undesired progression of nephroblastoma and neuroblastoma. Furthermore, TrkB is expressed in cancerous prostate cells but not in normal cells. Downstream of the trk receptor signaling pathway involves Shc, activated Ras, EPK-1 and EPK-2 genes, and a cascade of MAPK activation through the PLC-γ (PLC-gammal) pathway (Sugimoto et al., 2001).

  The kinase c-Src transmits oncogenic signals for many receptors. For example, overexpression of EGFR or HER2 / neu in tumors results in constitutive activation of c-src, which is characteristic of malignant cells but not normal cells. On the other hand, mice lacking the expression of c-src display a phenotype of marble bone disease, suggesting an important involvement of c-src in osteoclast function and possible involvement in related disorders.

  Tec family kinase, Bmx, a non-receptor protein tyrosine kinase, controls the growth of breast epithelial cancer cells.

  Fibroblast growth factor receptor 3 has been shown to exert a negative regulatory effect on bone growth and inhibition of chondrocyte proliferation. Lethal osteodysplasia is caused by various mutations in fibroblast growth factor receptor 3, and one mutation, TDII FGFR3, has a constitutive tyrosine kinase activity that activates the transcription factor Stat1; It results in cell cycle inhibitor expression, growth arrest and abnormal bone development (Su et al., Nature, 1997, 386, 288-292). FGFR3 is also often expressed in multiple myeloma type cancers. Inhibitors of FGFR3 activity include, but are not limited to, rheumatoid arthritis (RA), collagen II arthritis, multiple sclerosis (MS), systemic lupus erythematosus (SLE), psoriasis, juvenile-onset diabetes, Sjogren's disease, thyroid Useful in the treatment of T cell mediated inflammatory or autoimmune diseases, including diseases, sarcoidosis, autoimmune uveitis, inflammatory bowel disease (Crohn's disease and ulcerative colitis), celiac disease and myasthenia gravis It is.

  Serum and glucocorticoid-regulated kinase (SGK) activity correlates with perturbed ion channel activity, particularly sodium and / or potassium channel activity, and the compounds of the present invention may be useful for treating hypertension .

  Lin et al. (1997) J. Clin. Invest. 100, 8: 2072-2078 and P. Lin (1998) PNAS 95, 8829-8834 are used during adenovirus infection or Tie- in breast tumor and melanoma xenograft models. Inhibition of tumor growth and angiogenesis, and also reduced lung metastases during injection of 2 (Tek) extracellular domain. Tie2 inhibitors are used in situations where neovascularization is inappropriately performed (ie diabetic retinopathy, chronic inflammation, psoriasis, Kaposi's sarcoma, chronic neovascularization due to macular degeneration, rheumatoid arthritis, pediatric hemangioma and cancer). In).

  Lck plays a role in T cell signaling. Mice lacking the Lck gene have poor ability to generate thymocytes. The function of Lck as a positive activator of T cell signaling suggests that Lck inhibitors may be useful for treating autoimmune diseases such as rheumatoid arthritis.

  JNK, along with other MAPKs, is involved in playing a role in mediating cellular responses to cancer, thrombin-induced platelet aggregation, immunodeficiency disorders, autoimmune diseases, cell death, allergy, osteoporosis and heart disease. Therapeutic targets associated with JNK pathway activation include chronic myelogenous leukemia (CML), rheumatoid arthritis, asthma, osteoarthritis, ischemia, cancer and neurodegenerative diseases. As a result of the importance of JNK activation associated with liver disease or liver ischemia episodes, the compounds of the invention may also be useful in treating various liver disorders. A role for JNK in cardiovascular diseases such as myocardial infarction or congestive heart failure has also been reported, as JNK has been shown to mediate hypertrophic responses to various forms of cardiac stress. The JNK cascade has also been demonstrated to play a role in T cell activation, including activation of the IL-2 promoter. Thus, JNK inhibitors can have therapeutic value in altering a pathological immune response. A role for JNK activation in various cancers has also been established, suggesting the possibility of using JNK inhibitors in cancer. For example, constitutively activated JNK is associated with HTLV-1 mediated tumor formation [Oncogene 13: 135-42 (1996)]. JNK may play a role in Kaposi's sarcoma (KS). Other proliferative effects of other cytokines involved in KS proliferation, such as vascular endothelial growth factor (VEGF), IL-6 and TNFα, can also be mediated by JNK. In addition, regulation of the c-jun gene in p210 BCR-ABL transformed cells is consistent with JNK activity, suggesting a role for JNK inhibitors in the treatment of chronic myeloid leukemia (CML) [Blood 92: 2450-60 (1998)].

  Certain abnormal growth conditions are believed to be associated with raf expression and are therefore thought to respond to inhibition of raf expression. Abnormally high expression levels of raf protein are also involved in transformation and abnormal cell proliferation. These abnormal growth conditions are also thought to respond to inhibition of raf expression. For example, since 60% of all lung cancer cell lines are reported to express very high levels of c-raf mRNA and protein, c-raf protein expression appears to play a role in abnormal cell proliferation. It has been. Further examples of abnormal growth conditions are cancer, tumor, hyperplasia, pulmonary fibrosis, angiogenesis, psoriasis, atherosclerosis and vascular smooth muscle cell proliferation, eg stenosis or restenosis after angioplasty Hyperproliferative disorders such as Cell signaling pathways that raf forms part of are also in inflammatory disorders characterized by T cell proliferation (T cell activation and proliferation), such as tissue graft rejection, endotoxin shock and glomerulonephritis. Is also involved.

  Stress-activated protein kinases (SAPKs) are a family of protein kinases that represent the penultimate step in the signal transduction pathway that results in activation of c-jun transcription factors and expression of genes regulated by c-jun. . In particular, c-jun is involved in the transcription of genes encoding proteins involved in the repair of DNA damaged by genotoxic injury. Thus, an agent that inhibits SAPK activity in some cells prevents DNA repair and induces DNA damage or inhibits DNA synthesis to induce apoptosis of some cells or inhibit cell proliferation Sensitize cells to drugs.

  Mitogen-activated protein kinase (MAPK) is a member of a conserved signaling pathway that activates transcription factors, translation factors, and other target molecules in response to various extracellular signals. MAPK is activated by phosphorylation at the dual phosphorylation motif with the sequence Thr-X-Tyr by mitogen-activated protein kinase kinase (MKK). In higher eukaryotes, the physiological role of MAPK signaling correlates with cellular events such as proliferation, carcinogenesis, development and differentiation. Thus, the ability to modulate signaling by these pathways (especially by MKK4 and MKK6) is implicated in the treatment and prophylactic treatment of human diseases associated with MAPK signaling, such as inflammatory diseases, autoimmune diseases and cancer. Will bring about development.

  The family of human ribosomal S6 protein kinases consists of at least eight members (RSK1, RSK2, RSK3, RSK4, MSK1, MSK2, p70S6K and p70S6 Kb). The ribosomal protein S6 protein kinase performs important pleiotropic functions, and in particular has an important role in the regulation of mRNA translation during protein biosynthesis (Eur. J. Biochem November 2000; 267 (21): 6321). -30, Exp Cell Res. November 25, 1999; 253 (1): 100-9, Mol Cell Endocrinol. May 25, 1999; 151 (1-2): 65-77). Phosphorylation of S6 ribosomal protein by p70S6 also regulates cell motility (Immunol. Cell Biol. August 2000; 78 (4): 447-51) and cell proliferation (Prog. Nucleic Acid Res. Mol. Biol. , 2000; 65: 101-27) and can therefore be important in tumor metastasis, immune response and tissue repair and other disease states.

  SAPK (also referred to as “jun N-terminal kinase” or “JNK's”) is the penultimate signaling pathway that leads to activation of c-jun transcription factors and expression of genes regulated by c-jun. It is a family of protein kinases that represent these stages. In particular, c-jun is involved in the transcription of genes encoding proteins involved in the repair of DNA damaged by genotoxic injury. Agents that inhibit SAPK activity in certain cells sensitize cells to their cancer treatments that act by preventing DNA repair and inducing DNA damage.

  BTK plays a role in autoimmune and / or inflammatory diseases such as systemic lupus erythematosus (SLE), rheumatoid arthritis, polyangiitis, idiopathic thrombocytopenic purpura (ITP), myasthenia gravis and asthma. Fulfill. Because of the role of BTK in B cell activation, inhibitors of BTK are useful as inhibitors of B cell mediated pathogenic activity such as autoantibody production and are useful in the treatment of B cell lymphoma and leukemia.

CHK2 is a member of the checkpoint kinase family of serine / threonine protein kinases and is involved in mechanisms used to monitor DNA damage, such as damage caused by environmental mutagens and endogenous reactive oxygen species. As a result, it is implicated as a tumor suppressor and target for cancer therapy.
CSK affects the metastatic potential of cancer cells, particularly colon cancer.

  Fes is a non-receptor protein tyrosine kinase that is involved in various cytokine signaling pathways and also in the differentiation of bone marrow cells. Fes is also an important component of the granulocyte differentiation mechanism.

  Flt3 receptor tyrosine kinase activity is involved in leukemia and myelodysplastic syndromes. In about 25% AML, leukemia cells express a constitutively active form of autophosphorylated (p) FLT3 tyrosine kinase on the cell surface. The activity of p-FLT3 confers proliferation and survival advantages on leukemia cells. Patients with acute leukemia whose leukemia cells express p-FLT3 kinase activity have poor overall clinical outcomes. Inhibition of p-FLT3 kinase activity induces apoptosis (programmed cell death) of leukemia cells.

  Inhibitors of IKKα and IKKβ (1 and 2) include rheumatoid arthritis, graft rejection, inflammatory bowel disease, osteoarthritis, asthma, chronic obstructive pulmonary disease, atherosclerosis, psoriasis, multiple sclerosis, Associated with stroke, systemic lupus erythematosus, Alzheimer's disease, cerebral ischemia, traumatic brain injury, Parkinson's disease, amyotrophic lateral sclerosis, subarachnoid hemorrhage, or overproduction of inflammatory mediators in the brain and central nervous system It is a treatment for diseases involving other diseases or disorders.

  Met is associated with most types of major human cancers, and expression is often correlated with poor prognosis and metastasis. Met inhibitors include lung cancer, NSCLC (non-small cell lung cancer), bone cancer, pancreatic cancer, skin cancer, head and neck cancer, skin or intraocular melanoma, uterine cancer, ovarian cancer, rectal cancer, anal cancer, Gastric cancer, colon cancer, breast cancer, gynecological tumors (eg, uterine sarcoma, fallopian tube cancer, endometrial cancer, cervical cancer, vaginal cancer or vulvar cancer), Hodgkin's disease, esophageal cancer, small intestine cancer, endocrine cancer ( (E.g. thyroid, parathyroid or adrenal cancer), soft tissue sarcoma, urethral cancer, penile cancer, prostate cancer, chronic or acute leukemia, childhood solid tumors, lymphocytic lymphoma, bladder cancer, kidney or ureter cancer (e.g. , Renal cell carcinoma, renal pelvic cancer), childhood malignancy, central nervous system tumor (eg primary CNS lymphoma, spinal axis tumor, brainstem glioma or pituitary adenoma), acute myeloid leukemia, chronic bone marrow Blood cancer such as sex leukemia, Barrett's esophagus (precancerous syndrome ), Neoplastic skin diseases, psoriasis, mycosis fungoides and benign prostatic hypertrophy, diabetic retinopathy, diabetes related diseases such as retinal ischemia and retinal neovascularization, heart like cirrhosis, atherosclerosis It is a therapeutic method for diseases including vascular diseases, immune diseases such as autoimmune diseases, and renal diseases. Preferably, the disease is a cancer such as acute myeloid leukemia and colorectal cancer.

  Nima-related kinase 2 (Nek2) is a cell cycle regulatory protein kinase with maximal activity at the start of mitosis localized to the centrosome. Functional studies have implicated Nek2 in centrosome separation and spindle formation. Nek2 protein is elevated 2-5 fold in cell lines derived from various human tumors, including cervical, ovarian, prostate, and especially breast tumors.

  p70S6K-mediated diseases or conditions include, but are not limited to, proliferative disorders such as cancer and tuberous sclerosis.

  In accordance with the foregoing, the present invention further provides a method for preventing or treating any of the previously described diseases or disorders in a subject in need of such treatment, wherein the subject is therapeutically effective. There is provided a method comprising administering an amount (see “Administration and Pharmaceutical Compositions” below) of a compound of Formula I or a pharmaceutically acceptable salt thereof. For any of the above uses, the required dosage will vary depending on the mode of administration, the particular condition to be treated and the effect desired.

Administration and Pharmaceutical Compositions In general, a compound of the present invention is administered in a therapeutically effective amount, either alone or in combination with one or more therapeutic agents, by any of the usual and acceptable methods known in the art. Is administered. A therapeutically effective amount can vary widely depending on the severity of the disease, the age and relative health of the subject, the potency of the compound used, and other factors. In general, satisfactory results are shown to be obtained systemically at daily dosages of about 0.03 to 2.5 mg / kg body weight. The indicated daily dosage in large mammals, eg, humans, is in the range of about 0.5 mg to about 100 mg, and is conveniently administered, for example, in divided doses up to 4 times a day or in delayed form. . Suitable unit dosage forms for oral administration contain from about 1 to 50 mg of active ingredient.

  The compounds of the invention may be administered by any conventional route, in particular enterally, for example orally, for example in the form of tablets or capsules or parenterally, for example injectable solutions or It can be administered as a pharmaceutical composition in the form of a suspension, topically, for example in the form of a lotion, gel, ointment or cream, or in the form of nasal administration, inhalation or suppository. A pharmaceutical composition comprising a compound of the present invention in free form or in the form of a pharmaceutically acceptable salt, together with at least one pharmaceutically acceptable carrier or diluent, is prepared by mixing, granulating or coating methods. Can be manufactured in a conventional manner. For example, the oral composition comprises a) a diluent such as lactose, glucose, sucrose, mannitol, sorbitol, cellulose and / or glycine; b) a lubricant such as silica, talcum, stearic acid, its magnesium or calcium salt And / or polyethylene glycol; for tablets also c) binders such as magnesium aluminum silicate, starch paste, gelatin, tragacanth, methylcellulose, sodium carboxymethylcellulose and / or polyvinylpyrrolidone; optionally d) disintegrants such as , Starch, agar, alginic acid or its sodium salt, or effervescent mixture; and / or e) tablets or gelatin capsules containing the active ingredient together with absorbents, colorants, flavors and sweeteners Get. Injectable compositions can be isotonic aqueous solutions or suspensions, and suppositories can be prepared from fatty emulsions or suspensions. The composition can be sterilized and / or can contain adjuvants such as preservatives, stabilizers, wetting or emulsifying agents, solubility enhancers, salts to adjust the osmotic pressure, and / or buffers. . In addition, they may also contain other therapeutically valuable substances. Formulations suitable for transdermal application include an effective amount of a compound of the present invention with a carrier. The carrier can include absorbable pharmacologically acceptable solvents to assist passage through the skin of the host. For example, transdermal devices may be used as a backing, optionally a reservoir containing the compound with a carrier, optionally to deliver the compound to the host skin over a long period of time at a controlled and predetermined rate. A rate control barrier and a form of bandage including means for securing the device to the skin. Matrix transdermal formulations can also be used. For example, suitable formulations for topical application to the skin and eyes are preferably aqueous solutions, ointments, creams or gels well known in the art. Such may contain solubilizers, stabilizers, tonicity enhancing agents, buffers and preservatives.

  The compounds of the present invention may be administered in a therapeutically effective amount in combination with one or more therapeutic agents (pharmaceutical combinations). For example, synergistic effects can occur with other asthma treatments, such as steroids and leukotriene antagonists.

  For example, synergistic effects can be achieved, for example, by cyclosporine, rapamycin, or ascomycin, or immunosuppressive analogs thereof, such as cyclosporin A (CsA), cyclosporin G, FK-506, rapamycin, or equivalent compounds, bronchodilators, corti Costeroids, cyclophosphamide, azathioprine, methotrexate, brequinar, leflunomide, mizoribine, mycophenolic acid, mycophenolate mofetil, 15-deoxyspagarin, immunosuppressive antibodies, especially monoclonal antibodies to leukocyte receptors, such as MHC, When used in combination with CD2, CD3, CD4, CD7, CD25, CD28, B7, CD45, CD58 or their ligands or other immunomodulatory compounds such as CTLA41g It can occur in immunomodulatory or anti-inflammatory agent. When the compound of the present invention is administered in combination with other therapies, the dosage of the compound to be co-administered will of course vary depending on the type of concomitant drug used, the specific drug used, the condition being treated, and the like.

  The invention also provides a) a first agent that is a compound of the invention as disclosed herein, a) in free form or in the form of a pharmaceutically acceptable salt, and b) at least one Also provided are pharmaceutical combinations, for example kits, comprising The kit can include instructions for its administration.

  As used herein, the terms “simultaneous administration” or “combination administration” and the like are meant to encompass administration of selected multiple therapeutic agents to a single patient, and the multiple agents are not necessarily the same. It is intended to include treatment regimes that are not administered by route of administration or simultaneously.

  The term “pharmaceutical combination” as used herein means a product resulting from the mixing or combination of one or more active ingredients and includes both fixed and non-fixed active ingredient combinations. It is. The term “fixed combination” means that multiple active ingredients, eg, a compound of Formula I and a concomitant drug, are both administered to a patient simultaneously in the form of a single entity or dosage. The term “non-fixed combination” means that multiple active ingredients, for example a compound of formula I and a concomitant drug, are both given to the patient as separate ones at the same time, in parallel or sequentially, without specific time restrictions. Where such administration provides a therapeutically effective level of the two compounds in the patient's body. The latter also applies to cocktail therapy, eg the administration of 3 or more active ingredients.

Process for Producing the Compound of the Present Invention The present invention also includes a process for producing the compound of the present invention. In the reactions described, reactive functional groups such as hydroxy, amino, imino, thio or carboxy groups may be protected when desired in the final product to avoid their unwanted participation in the reaction. May be necessary. Conventional protecting groups can be used according to standard techniques. See, for example, John Wiley and Sons, 1991, in T. W. Greene and P. G. M. Wuts, “Protective Groups in Organic Chemistry”.

［式中、Ｒ_１、Ｒ_２ａ、Ｒ_２ｂおよびＲ_３は、発明の要約に記載した通りであり、そしてＬは、（反応スキームに示す通り）１Ｈ−１,２,４−トリアゾール−５−イルである。］。式Ｉの化合物は、適当な溶媒（例えば、ＮＭＰ、ＤＭＦ、nＢuＯＨ等）および適当な塩基（例えば、Ｋ_２ＣＯ_３等）の存在下、式（２）の化合物を式（３）の化合物と反応させることにより製造され得る。その反応は、約０℃〜約１８０℃の温度範囲で行われて、完了するまで２４時間かかり得る。 Compounds of formula I can be prepared by proceeding as in the following reaction scheme I:

Wherein R ₁ , R _2a , R _2b and R ₃ are as described in the Summary of the Invention and L is 1H-1,2,4-triazole-5- (as shown in the reaction scheme). Ill. ]. The compound of formula I can be obtained by combining the compound of formula (2) with the compound of formula (3) in the presence of a suitable solvent (eg, NMP, DMF, nBuOH, etc.) and a suitable base (eg, K ₂ CO ₃ etc.) It can be produced by reacting. The reaction is carried out in the temperature range of about 0 ° C. to about 180 ° C. and can take up to 24 hours to complete.

  Detailed synthetic examples of compounds of formula I can be found in the following examples.

Additional Methods for Preparing Compounds of the Invention Compounds of the invention are prepared as pharmaceutically acceptable acid addition salts by reacting free base form compounds with pharmaceutically acceptable inorganic or organic acids. Can be done. Alternatively, pharmaceutically acceptable base addition salts of the compounds of this invention can be prepared by reacting the free acid form of the compound with a pharmaceutically acceptable inorganic or organic base. Alternatively, salt forms of the compounds of the invention can be prepared using starting or intermediate salts.

  The free acid or free base forms of the compounds of the invention can be prepared from the corresponding base addition salt or acid addition salt form, respectively. For example, a compound of the invention in the form of an acid addition salt can be converted to the corresponding free base by treating with a suitable base (eg, ammonium hydroxide solution, sodium hydroxide, etc.). A compound of the invention in the form of a base addition salt can be converted to the corresponding free acid by treating with a suitable acid (eg, hydrochloric acid, etc.).

  The compound of the present invention in an unoxidized form is reduced to a reducing agent (eg, sulfur, sulfur dioxide, triphenylphosphine, etc.) at 0-80 ° C. in a suitable inert organic solvent (eg, acetonitrile, ethanol, aqueous dioxane, etc.) By treatment with lithium borohydride, sodium borohydride, phosphorous trichloride, tribromide and the like) from the N-oxides of the compounds of the invention.

  Prodrug derivatives of the compounds of the present invention may be prepared by methods known to those skilled in the art (see, eg, Saulnier et al., (1994), Bioorganic and Medicinal Chemistry Letters, Volume 4, 1985 for further details). reference.). For example, suitable prodrugs may include non-derivatized compounds of the invention with suitable carbamylating agents (eg, 1,1-acyloxyalkylcarbanochloridate, p-nitrophenyl carbonate (para- nitrophenyl carbonate)) and the like.

  Protected derivatives of the compounds of the invention can be prepared by methods known to those skilled in the art. A detailed description of the techniques applicable to the creation of protecting groups and their removal can be found in T. W. Greene, “Protecting Groups in Organic Chemistry”, 3rd edition, John Wiley and Sons, Inc., 1999. obtain.

  The compounds of the present invention can be conveniently prepared or formed as solvates (eg, hydrates) during the methods of the present invention. Hydrates of compounds of the present invention can be conveniently prepared by recrystallization from an aqueous / organic solvent mixture, using organic solvents such as dioxin, tetrahydrofuran or methanol.

  The compounds of the present invention are reacted with a racemic mixture of the compounds with an optically active resolving agent to form a pair of diastereoisomeric compounds, and the diastereomers are separated to form an optically pure mirror image. By collecting the isomers, they can be produced as their individual stereoisomers. While resolution of enantiomers can be carried out using covalent diastereoisomeric derivatives of the compounds of the invention, dissociable complexes (eg, crystalline diastereomeric salts) are preferred. Diastereomers have different physical properties (eg, melting point, boiling point, solubility, reactivity, etc.) and can be easily separated by taking advantage of these differences. Diastereomers can be separated by chromatography or, preferably, by separation / resolution techniques based on solubility differences. The optically pure enantiomer is then recovered with the resolving agent by any practical method that will not result in racemization. A more detailed description of the techniques applicable to the resolution of stereoisomers from their racemic mixtures of compounds is given by Jean Jacques, Andre Collet, Samuel H. Wilen, “Enantiomers, Racemates and Resolutions”, Johann Wiley And Sons, Inc. ., 1981 can be found.

In summary, the compound of formula I is
(A) the method of Reaction Scheme I; and (b) optionally conversion of the compound of the invention to a pharmaceutically acceptable salt;
(C) optionally converting a salt form of the compound of the invention to a non-salt form;
(D) optionally converting the compound of the invention to the unoxidized form of a pharmaceutically acceptable N-oxide;
(E) optionally converting the N-oxide form of the compounds of the invention into its unoxidized form;
(F) optionally resolution of individual isomers of the compounds of the invention from mixtures of isomers;
(G) optionally converting a non-derivatized compound of the invention to a pharmaceutically acceptable prodrug derivative; and (h) optionally converting a prodrug derivative of the compound of the invention to an underivatized form. ;
Can be produced by a method comprising:

  Unless otherwise stated the preparation of the starting material, the compound is known or can be prepared in a manner analogous to methods known in the art or as disclosed in the examples below.

  One skilled in the art will appreciate that the previous transformations are only representative methods for preparing the compounds of the present invention, and that other well-known methods can be used as well.

EXAMPLES The invention is further demonstrated, but not limited, by the following examples that illustrate the preparation of compounds of formula I according to the invention.

Synthesis of 3- (4- (pyridin-3-yl) pyrimidin-2-ylamino) -4-methylbenzoic acid 5

  To a solution of 3-amino-4-methyl-benzoic acid methyl ester (0.6 mol) in nBuOH (50 mL) was added 70% nitric acid (2.7 mL) to form a nitrate, followed by an aqueous cyanamide solution (50% (Weight), 7 mL, 0.09 mol). The resulting mixture is heated at reflux for 16 hours, cooled to ambient temperature, and then diethyl ether (100 mL) is added. After cooling at 0 ° C. for 30 minutes, filter and wash with 1: 1 = methanol: diethyl ether (120 mL) to give 3-guanidino-4-methyl-benzoic acid methyl ester nitrate 2.

3-Guanidino-4-methyl-benzoic acid methyl ester in nBuOH (40 mL) Nitrate 2 (0.02 mol) is added 3 (0.02 mol) and sodium hydroxide flakes (0.02 mol). The resulting mixture is heated at reflux for 12 hours to give ester 4. To the nBuOH solution of ester 4 is added 1N aqueous NaOH (20 mL) and heated at reflux for 30 minutes. After cooling to room temperature, 1N (aq) HCl (20 mL) is slowly added to the mixture with vigorous stirring. The product is collected by filtration and washed with water to give acid 5. ¹ H NMR (400 MHz, d ₆ -DMSO) δ 9.28 (d, J = 1.8 Hz, 1 H), 9.08 (s, 1 H), 8.7 (dd, J = 4.7, 1. 5 Hz, 1 H), 8.55 (d, J = 5.1 Hz, 1 H), 8.46 (dt, J = 8, 1.8 Hz, 1 H), 8.31 (s, 1 H), 7.65 ( dd, J = 7.8, 1.5 Hz, 1 H), 7.54 (dd, J = 7.7, 4.7 Hz, 1 H), 7.49 (dd, J = 5.2 Hz, 1 H), 7 .37 (d, J = 7.9 Hz, 1 H), 3.08 (s, 3 H). MS (m / z) (M + 1) ^<+> : 307.2.

Reactant 3 can be obtained by the following procedure. A mixture of 3-acetylpyridine (2.47 mol) and N, N-dimethylformamide dimethylacetal (240 mL) is heated at reflux for 16 hours. The solvent is removed under reduced pressure and hexane (100 mL) is added to the residue to crystallize the solid. The solid is recrystallized from methylene chloride-hexane to give 3-dimethylamino-1- (3-pyridyl) -2-propen-1-one. ¹ H NMR (400 MHz, d-chloroform) δ 9.08 (d, J = 2.4 Hz, 1 H), 8.66 (m, 1 H), 8.20 (m, 1 H), 7.87 (m, 1H), 7.37 (m, 1H), 5.68 (d, J = 16.4 Hz, 1H), 3.18 (s, 3H), 2.97 (s, 3H).

Synthesis of 3- (4- (pyridin-3-yl) pyrimidin-2-ylamino) -4-methylbenzohydrazide 6

4-Methyl-3- (4-pyridin-3-yl-pyrimidin-2-ylamino) benzoic acid methyl ester 4 (3.2 g, 10 mmol) and hydrazine (6 mmol) were dissolved in absolute EtOH (20 mL) and refluxed. Heat at temperature overnight. The mixture is cooled to room temperature. The solid is filtered, washed with water and dried overnight under reduced pressure to give product 6 as a pale yellow solid. ¹ H NMR (400 MHz, d6-DMSO) δ 9.68 (s, 1H), 9.26 (m, 1H), 9.06 (s, 1H), 8.69 (dd, J = 4.7, 1.5 Hz, 1 H), 8.52 (d, J = 5.1, 1.2 Hz, 1 H), 8.43 (m, 1 H), 8.1 (dd, J = 5.8, 1.6 Hz) , 1H), 7.56 (m, 2H), 7.46 (dd, J = 5.1, 1.6 Hz, 1H), 7.3 (d, J = 7.9 Hz, 1H), 4.45 (S, 1H), 3.33 (s, 3H), 3.31 (s, 1H). MS (m / z) (M + 1) ^<+> : 321.1.

{5- [5- (3-Difluoromethoxy-phenyl) -2H- [1,2,4] triazol-3-yl] -2-methyl-phenyl}-(4-pyridin-3-yl-pyrimidine-2 Synthesis of -yl) -amine A1

Hydrazine 6 (160 mg, 0.5 mmol) and 3-difluoromethoxy-benzonitrile (338 mg, 2 mmol) were suspended in anhydrous nBuOH (2 mL) / NMP (0.5 mL) and 1 hour at 180 ° C. in a microwave oven. Heat. The mixture is cooled to room temperature. The mixture is purified by preparative LC / MS to give product A1 as a pale yellow solid. ¹ H NMR (400 MHz, d4-MeOH) δ 9.32 (s, 1H), 8.6 (m, 2H), 8.51 (d, J = 4.9 Hz, 1H), 7.95 (d, J = 7.5 Hz, 1 H), 7.86 (s, 1 H), 7.78 (d, J = 7.6 Hz, 1 H), 7.52 (m, 2 H), 7.42 (m, 2 H) 7.25 (d, J = 8.0 Hz, 1 H), 6.9 (t, J = 73.8 Hz, 1 H), 2.41 (s, 3 H). MS (m / z) (M + 1) ^<+> : 472.2.

  A similar procedure is used in the preparation of final compounds A2-A8.

{2-Methyl-5- [5- (3-trifluoromethoxy-phenyl) -2H- [1,2,4] triazol-3-yl] -phenyl}-(4-pyridin-3-yl-pyrimidine- 2-yl) -amine A2: ¹ H NMR (400 MHz, d6-DMSO) δ 10 (s, 1H), 9.42 (d, J = 8.6 Hz, 1H), 9.3 (m, 2H), 9.09 (d, J = 5.2 Hz, 1 H), 8.99 (s, 1 H), 8.67 (d, J = 7.8 Hz, 1 H), 8.56 (s, 1 H), 8. 31 (dd, J = 7.8, 1.6 Hz, 1 H), 8.18 (dd, J = 7.8, 5.5 Hz, 1 H), 8.1 (t, J = 8.0 Hz, 1 H) 8.0 (d, J = 5.2 Hz, 1H), 7.87 (m, 2H), 2.94 (s, 3H). MS (m / z) (M + 1) ^<+> : 490.2.

By repeating the procedure described in the previous examples (intermediates and final compounds) using appropriate starting materials, the following compounds of formula I identified in Table 1 are obtained.

Assays The compounds of the invention are assayed to determine their ability to selectively inhibit the growth of wild type Ba / F3 cells and Ba / F3 cells transformed with Tel c-kit kinase and Tel PDGFR fusion tyrosine kinase. To do. In addition, the compounds of the present invention selectively inhibit SCF-dependent proliferation in Mo7e cells. In addition, the compounds can be assayed to determine Abl, ARG, BCR-Abl, BRK, EphB, Fms, Fyn, KDR, c-kit, LCK, PDGF-R, b-Raf, c-Raf, SAPK2, Src, Tie2, and Their ability to inhibit TrkB kinase is measured.

Proliferation assay: BaF3 library-Bright glo readout protocol Compounds are tested for their ability to inhibit the proliferation of wt Ba / F3 cells and Ba / F3 cells transformed with Tel fusion tyrosine kinase. Non-transformed Ba / F3 cells are maintained in medium containing recombinant IL3. Cells are seeded at 5,000 cells in 50 ul medium per well into a 384 well TC plate and test compounds are added at 0.06 nM to 10 μM. The cells are then incubated for 48 hours at 37 ° C., 5% CO ₂ . After incubating the cells, 25 μL of BRIGHT GLO ™ (Promega) was added to each well according to the manufacturer's instructions to analyze Analyst GT-luminescence mode- Read the plate using 50,000 integration time with RLU. IC ₅₀ values, the concentration of compound required for 50% inhibition, are determined from dose response curves.

Mo7e assay The compounds described herein are tested for inhibition of SCF-dependent proliferation using Mo7e cells that endogenously express c-kit in a 96-well format. Briefly, serially diluted 2-fold test compounds (Cmax = 10 μM) are evaluated for their antiproliferative activity of Mo7e cells stimulated with human recombinant SCF. After 48 hours of incubation at 37 ° C., cell viability is measured by using the Promega MTT colorimetric assay.

c-kit HTRF protocol 25 ng in kinase buffer (20 mM Tris pH 7.5, 10 mM MgCl ₂ , 0.01% BSA, 0.1% Brij 35, 1 mM DTT, 5% glycerol, 0.05 mM Na ₃ VO ₄ ) C-kit (5 ng / μL) and 2 μM biotin-EEEPQYEEIPIYELLELLP-NH ₂ peptide A constant amount (5 μL) of a 2 × concentration of c-kit enzyme mix was added to 384 proxy plates (Packard) Add to each well. Each well in the last row of the proxy plate has 5 μL of c-kit enzyme mix without c-kit to verify background levels. A compound of the invention is added to each well and the plate is incubated for 30 minutes at room temperature. Two times ATP (40 μM) in kinase buffer (5 μL) is added to each well and the plate is incubated for 3 hours at room temperature. Detection mix (50% KF, 40% kinase buffer, 10% EDTA, Mab PT66-K diluted 1: 100 (Catalog No. 61T66KLB) and Streptavidin-XL diluted 1: 100 (Catalog No. 611SAXLB)) ( 10 μL) is added to each well and the plate is incubated at room temperature for an additional 1-2 hours. The HTRF signal is then read with a detector.

Human TG-HA-VSMC proliferation assay Human TG-HA-VSMC cells (ATCC) were grown to 80-90% confluence in DMEM supplemented with 10% FBS, followed by 1% FBS and 30 ng / mL recombinant human. Resuspend in DMEM supplemented with PDGF-BB at a rate of 6e4 cells / mL. Cells are then aliquoted into 384-well plates at a rate of 50 uL / well, incubated for 20 hours at 37 ° C., and then treated with 0.5 uL of 100 × compound for 48 hours at 37 ° C. After processing, 25 uL of CellTiter-Glo is added to each well for 15 minutes before reading the plate with CLIPR (Molecular Devices).

PDGFRα / β Lance Assay Protocol Double concentration of PDGERβ peptide and ATP mix (4 μM biotin-βA-βA-βA-AEEEEYVFIEAKKK peptide, assay buffer (20 mM Hepes, 54 mM MgCl ₂ , 0.01% BSA) Aliquots (2.5 μL) of 20 μM ATP), 0.05% Tween-20, 1 mM DTT, 10% glycerol, 50 μM Na ₃ VO ₄ ) in each well of 384 proxy plates (Packard) Add to. The plate is centrifuged and the compound of the invention (50 nL) is added to each well by a pintool dispenser. In each well, double the concentration of enzyme mix (PDGFRα (catalog number PV4117) or 1.5 ng / μL PDGFRβ (catalog number PV3591)) or PDGFRα / β enzyme in assay buffer. Add assay buffer alone (2.5 μL) without. The plate is incubated at room temperature for 1.5 hours. Detection mix (5 μL; 50% 1M KF, 40% kinase buffer, 10% EDTA, Mab PT66-K diluted 1: 100 (Cat # 61T66KLB) and Streptavidin-XL diluted 1: 100 (Cat # 611SAXLB) )) Is added to each well and the proxy plate is incubated at room temperature for 1 hour before reading the HTRF signal with a detector.

Ba / F3 FL FLT3 proliferation assay The mouse cell line used is the Ba / F3 mouse pro-B cell line overexpressing the full length FLT3 construct. These cells are maintained in RPMI 1640/10% fetal calf serum (RPMI / FBS) supplemented with mouse recombinant IL3 and supplemented with penicillin 50 μg / mL, streptomycin 50 μg / mL and L-glutamine 200 mM. Ba / F3 full-length FLT3 cells were subjected to IL3 starvation for 16 hours and then seeded in a 384-well TC plate at a rate of 5,000 cells in 25 uL medium per well to give a test compound of 0.06 nM to Add at 10 μM. After the compound is added, FLT3 ligand or IL3 for cytotoxicity control is added at an appropriate concentration to 25 uL medium per well. The cells are then incubated for 48 hours at 37 ° C., 5% CO ₂ . After incubating the cells, 25 μL of Bright Glo ™ (Promega) was added to each well according to the manufacturer's instructions, using Analyst GT-Luminescence Mode-RLU using 50000 integration time, Read the plate.

Inhibition of BCR-Abl-dependent growth of cells (high-throughput method)
The mouse cell line used is the 32D hematopoietic progenitor cell line (32D-p210) transformed with BCR-Abl cDNA. These cells are maintained in RPMI / 10% fetal calf serum (RPMI / FCS) supplemented with penicillin 50 μg / mL, streptomycin 50 μg / mL and L-glutamine 200 mM. Non-transformed 32D cells are similarly maintained with 15% WEHI conditioned medium added as a source of IL3.

50 μL of 32D or 32D-p210 cell suspension is seeded on a Greiner 384 well microplate (black) at a density of 5,000 cells per well. 50 nL of test compound (1 mM in DMSO stock solution) is added to each well (STI571 is included as a positive control). The cells are incubated for 72 hours at 37 ° C., 5% CO ₂ . 10 μL of 60% Alamar Blue solution (Tek diagnostics) is added to each well and the cells are incubated for an additional 24 hours. Fluorescence intensity (excitation at 530 nm, emission at 580 nm) is quantified using an Acquest ™ system (Molecular Devices).

Inhibition of BCR-Abl dependent growth of cells 32D-p210 cells are seeded in 96-well TC plates at a density of 15,000 cells per well. 50 μL of 2-fold serial dilution of test compound (Cmax is 40 μM) is added to each well (STI571 is included as a positive control). After incubating the cells for 48 hours at 37 ° C., 5% CO ₂ , 15 μL of MTT (Promega) is added to each well and the cells are incubated for an additional 5 hours. The optical density at 570 nm is quantified spectrophotometrically and the IC ₅₀ value, the concentration of compound required for 50% inhibition, is determined from the dose response curve.

Effect on cell cycle distribution 32D and 32D-p210 cells are seeded in 6 mL TC plates in 5 mL medium at a rate of 2.5 × 10 ⁶ cells per well and test compounds are added at 1 or 10 μM (STI571). Is included as a control.) The cells are then incubated for 24 or 48 hours at 37 ° C., 5% CO ₂ . 2 mL of cell suspension is washed with PBS, fixed in 70% EtOH for 1 hour, and treated with PBS / EDTA / RNase A for 30 minutes. Propidium iodide (Cf = 10 μg / ml) is added and fluorescence intensity is quantified by flow cytometry on a FACScalibur ™ system (BD Biosciences). The test compounds of the present invention demonstrate an apoptotic effect on 32D-p210 cells, but do not induce apoptosis in 32D parental cells.

Effects on BCR-Abl Autophosphorylation of Cells BCR-Abl autophosphorylation is quantified with a capture ELISA (Elisa) using c-abl specific capture antibody and anti-phosphotyrosine antibody. 32D-p210 cells are seeded in 96-well TC plates at 2 × 10 ⁵ cells per well in 50 μL medium. Add 50 μL of 2-fold serial dilution of test compound (Cmax is 10 μM) to each well (STI571 is included as a positive control). The cells are incubated for 90 minutes at 37 ° C., 5% CO ₂ . The cells were then washed on ice with 150 μL of lysis buffer (50 mM Tris-HCl, pH 7.4, 150 mM NaCl, 5 mM EDTA, 1 mM EGTA and 1% NP-40) containing protease and phosphatase inhibitor. Processing time. 50 μL of cell lysate is added to 96 well optiplates pre-coated with anti-abl specific antibody and blocked. The plate is incubated for 4 hours at 4 ° C. After washing with TBS-Tween 20 buffer, 50 μL of alkaline phosphatase-conjugated anti-phosphotyrosine antibody is added and the plate is further incubated at 4 ° C. overnight. After washing with TBS-Tween 20 buffer, 90 μL of luminescent substrate is added, and luminescence is quantified using the ACCUEST ™ system (Molecular Devices). A test compound of the invention that inhibits the growth of BCR-Abl expressing cells inhibits cellular BCR-Abl autophosphorylation in a dose-dependent manner.

Effect on proliferation of cells expressing mutant form of BCR-Abl BCR-Abl wild type or mutant form (G250E, E255V, T315I, F317L, M351T) conferring resistance or decreased sensitivity to STI571 Are tested for their anti-proliferative effect on Ba / F3 cells expressing any of the above. The anti-proliferative effect of these compounds on mutant-BCR-Abl expressing cells and on non-transformed cells was as previously described (in media lacking IL3) 10, 3.3, 1.1 and 0. Tested at .37 μM. IC ₅₀ values for compounds lacking toxicity to non-transformed cells were determined from dose response curves obtained as described above.

FGFR3 (enzyme assay)
Kinase activity assays using purified FGFR3 (Upstate) were performed using kinase buffer (30 mM Tris-HCl pH 7.5, 15 mM MgCl ₂ , 4.5 mM MgCl ₂ , 15 μM Na ₃ VO ₄ and 50 μg / in a final volume of 10 μL containing 0.25 μg / mL enzyme and substrate (5 μg / mL biotin-poly-EY (Glu, Tyr) (CIS-US) and 3 μM ATP) in mL BSA). Make two solutions: First, dispense 5 μL of the first solution containing FGFR3 enzyme in kinase buffer into a 384-format ProxiPlate ™ (Perkin-Elmer). After injection, 50 nL of compound dissolved in DMSO was added, then 5 μL of a second solution containing substrate (poly-EY) and ATP in kinase buffer was added to each well. The reaction was incubated at room temperature for 1 hour and stopped by adding 10 μL of HTRF detection mixture, which was 30 mM Tris-HCl pH 7.5, 0.5 M KF, 50 mM EDTA, 0.2 mg / mL BSA, 15 μg. / ML Streptavidin-XL665 (CIS-US) and 150 ng / mL cryptate bound anti-phosphotyrosine antibody (CIS-US). In order to allow the streptavidin-biotin interaction, the time-resolved fluorescent signal is read with Analyst GT (Molecular Devices) after 1 hour incubation at room temperature. IC ₅₀ values are calculated by linear regression analysis of the percent inhibition of each compound at a concentration of 12 (1: 3 dilution from 50 μM to 0.28 nM). In this assay, the compounds of the invention have an IC ₅₀ in the range of 10 nM to 2 μM.

FGFR3 (cell assay)
The compounds of the present invention are tested for their ability to inhibit transformed Ba / F3-TEL-FGFR3 cell proliferation, which depends on FGFR3 cell kinase activity. Ba / F3-TEL-FGFR3 is cultured to 800,000 cells / mL in suspension with RPMI 1640 supplemented with 10% fetal calf serum as culture medium. Cells are dispensed into 384 well format plates at a rate of 5000 cells / well in 50 μL culture medium. The compound of the present invention is dissolved and diluted in dimethylsufoxide (DMSO). Twelve point 1: 3 serial dilutions are made into DMSO to create a concentration gradient that typically ranges from 10 mM to 0.05 μM. Cells are added with 50 nL of diluted compound and incubated for 48 hours in a cell culture incubator. Alamar Blue ™ (Trek Diagnostics Systems), which can be used to monitor the reducing environment created by proliferating cells, is added to the cells at a final concentration of 10%. After further incubation for 4 hours in a cell culture incubator at 37 ° C., the fluorescence signal from reduced Alamar Blue ™ (excitation at 530 nm, emission at 580 nm) was quantified with Analyst GT (Molecular Devices) To do. IC ₅₀ values are calculated by linear regression analysis of the percent inhibition of each compound at 12 concentrations.

b-Raf-Enzyme Assay The compounds of the invention are tested for their ability to inhibit the activity of b-Raf. The assay is performed on 384-well MaxiSorp plates (NUNC) with black walls and clear bottoms. The substrate IκBα is diluted in DPBS (1: 750) and 15 μL is added to each well. The plates are incubated overnight at 4 ° C. and washed 3 times with TBST (25 mM Tris pH 8.0, 150 mM NaCl and 0.05% Tween-20) using an EMBLA plate washer. Plates are blocked with Superblock (15 μL / well) for 3 hours at room temperature, washed 3 times with TBST and the pad is dried. Assay buffer containing 20 μM ATP (10 μL) is added to each well followed by 100 nL or 500 nL of compound. Dilute B-Raf in assay buffer (1 μL to 25 μL) and add 10 μL of diluted b-Raf to each well (0.4 μg / well). The plate is incubated at room temperature for 2.5 hours. The kinase reaction is stopped by washing the plate 6 times with TBST. Phosph-IκBα (Ser32 / 36) antibody is diluted in superblock (1: 10,000) and 15 μL is added to each well. The plate is incubated overnight at 4 ° C. and washed 6 times with TBST. AP-conjugated goat anti-mouse IgG is diluted in superblock (1: 1,500) and 15 μL is added to each well. Plates are incubated for 1 hour at room temperature and washed 6 times with TBST. 15 μL of fluorescent Attophos AP substrate (Promega) is added to each well and the plate is incubated for 15 minutes at room temperature. The plate is read on an Accuest or Analyst GT using a fluorescence intensity program (excitation 455 nm, emission 580 nm).

b-Raf-Cell Assay Compounds of the invention are tested in A375 cells for their ability to inhibit MEK phosphorylation. The A375 cell line (ATCC) is derived from a human melanoma patient, which has a V599E mutation in the B-Raf gene. For B-Raf mutations, the level of phosphorylated MEK is assessed. Sub-confluent to confluent A375 cells are incubated with compounds in serum-free medium for 2 hours at 37 ° C. Cells are then washed once with cold PBS and lysed with lysis buffer containing 1% Triton X100. After centrifugation, the supernatant is subjected to SDS-PAGE and then transferred to a nitrocellulose membrane. The membrane is then subjected to Western blot with anti-phospho-MEK antibody (ser217 / 221) (Cell Signaling). The amount of phosphorylated MEK is monitored by the density of the phospho-MEK band on the nitrocellulose membrane.

Upstate Kinase Profiler ™ -Radioenzyme Filter Binding Assay Compounds of the invention are evaluated for their ability to inhibit individual members of the kinase panel. According to this general protocol, the compound is tested in duplicate at a final concentration of 10 μM. It should be noted that the kinase buffer composition and substrate depend on the various kinases included in the “Upstate Kinase Profilter ™” panel. Kinase buffer (2.5 μL, 10-fold—contains MnCl ₂ if necessary), active kinase (0.001-0.01 units; 2.5 μL), specific or poly (Glu4-Tyr) peptide (5-500 μM or 0.01 mg / ml) and kinase buffer (50 μM; 5 μL) are mixed in an eppendorf on ice. Add Mg / ATP mix (10 μL; 67.5 (or 33.75) mM MgCl ₂ , 450 (or 225) μM ATP and 1 μCi / μl [γ- ³² P] -ATP (3000 Ci / mmol)) The reaction is incubated at about 30 ° C. for about 10 minutes. The reaction mixture is spotted (20 μL) on 2 cm × 2 cm P81 (phosphocellulose, for positively charged peptide substrate) or Whatman No. 1 (for poly (Glu4-Tyr) peptide substrate) square paper. The assay square paper is washed 4 times for 5 minutes each with 0.75% phosphoric acid and once for 5 minutes with acetone. The assay square paper is transferred to a scintillation vial, 5 ml of scintillation cocktail is added and ³² P incorporation (cpm) into the peptide substrate is quantified with a Beckman scintillation counter. Calculate the percent inhibition for each reaction.

The compounds of formula I, in free form or in the form of pharmaceutically acceptable salts, exhibit beneficial pharmacological properties, for example as shown by the in vitro tests described in this application. For example, the compounds of the present invention have an IC ₅₀ of less than 1 μM in the Mo7e assay and exhibit a selectivity of more than 10 times for Bcr-abl.

  The examples and embodiments described herein are for illustrative purposes only, and various modifications or changes in light of this will be suggested to those skilled in the art, and the spirit and scope of this application and the accompanying It should be understood that it should be included within the scope of the following claims. All publications, patents, and patent applications cited herein are hereby incorporated by reference for all purposes.

Claims (5)

Formula I:

[Where:
L is

A 5-membered heteroaryl ring containing 3 nitrogen atoms selected from:
R ₁ , R _2a and R _2b are hydrogen, C _3-8 heterocycloalkyl, C _1-4 alkyl, C _1-4 alkoxy, halo substituted C _1-4 alkoxy, halo substituted C _1-4 Each independently from alkyl, —NR ₁₀ R ₁₁ , —OX ₁ R _8, wherein X ₁ is selected from a bond and C _1-4 alkylene; R ₈ is C _3-12 cycloalkyl. Or R ₁ and R _2a or R ₁ and R _2b together with the carbon atom to which R ₁ and R _2a or R _2b are attached form a phenyl; R ₁₀ and R ₁₁ Is hydrogen, C _1-4 alkyl, C _1-4 alkoxy, halo-substituted C _1-4 alkoxy, halo-substituted C _1-4 alkyl, C _3-8 heterocycloalkyl, C _1-10 heteroaryl From Or selected stand to; or _{R 10} and _{R 11, R 10} and _{R 11} are together with the nitrogen to which both attached to form a _{C 3-8} heterocycloalkyl or _{C 1-10} heteroaryl ;
R ₃ is selected from C _6-10 aryl, C _1-10 heteroaryl, C _3-12 cycloalkyl and C _3-8 heterocycloalkyl; wherein said aryl of R ₃ , heteroaryl, cycloalkyl or Heterocycloalkyl is hydrogen, halo, cyano, C _1-6 alkyl, C _1-6 alkoxy, halo substituted C _1-6 alkyl, halo substituted C _1-6 alkoxy, C _6-10 aryl-C _0-4 alkyl, heteroaryl, _{heterocyclyl, -X 2 NR 5a R 5b,} -X 2 NR 5a OR 5b, -X 2 C (O) R 5a, -X 2 S (O) 0-2 R 5a, - _{X 2 OX 3 R 5a, -X} 2 R 5a, -X 2 C (O) oR 5a, 1~3 amino Raj independently selected from -X 2 _{oR 5a} and _-X 2 _OX 3 _{oR 5a} Is substituted by Le; wherein, _{X 2} and _{X 3} are independently selected from a bond and _{C 1-4} alkylene; and _{R 5a} and _{R 5b} is _{hydrogen, C 1-6 alkyl, C 6-} Each independently selected from ₁₀ aryl, C _3-12 cycloalkyl, C _1-10 heteroaryl and C _3-12 heterocycloalkyl;
Wherein the aryl, cycloalkyl, heteroaryl or heterocycloalkyl substituent of R ₃ is optionally halo, hydroxy, cyano, C _1-6 alkyl, C _1-6 alkoxy, halo substituted C _1- Independently from ₆ alkyl, halo substituted C _1-6 alkoxy, —X ₄ OR ₆ , —X ₄ C (O) OR ₆ , —X ₄ C (O) NR ₆ R ₆ and —X ₄ R ₆ May be further substituted with 1 to 3 radicals selected; wherein X ₄ is selected from a bond and C _1-4 alkylene; and R ₆ is hydrogen, C _1-6 alkyl and C ₃₋ Selected from ₁₂ heterocycloalkyl. ]
Or a pharmaceutically acceptable salt thereof. L is

Selected from;
R ₁ , R _2a and R _2b are hydrogen, C _3-8 heterocycloalkyl, C _1-4 alkyl, C _1-4 alkoxy, halo substituted C _1-4 alkoxy, halo substituted C _1-4 Independently from alkyl, —NR ₁₀ R ₁₁ , —OX ₁ R _8, wherein X ₁ is selected from a bond and C _1-4 alkylene; R ₈ is C _3-12 cycloalkyl. Or R ₁ and R _2a together with the carbon atom to which R ₁ and R _2a are attached form phenyl; R ₁₀ and R ₁₁ are hydrogen, C _1-4 alkyl, C _1-4 alkoxy, halo-substituted _{C 1-4} alkoxy, halo-substituted _{C 1-4 alkyl, C 3-8 heterocycloalkyl,} or are independently selected from _{C 1-10} heteroaryl; or R ₁₀ and R ₁₁ together with the nitrogen to which both R ₁₀ and R ₁₁ are attached forms a C _3-8 heterocycloalkyl or C _1-10 heteroaryl;
R ₃ is selected from C _6-10 aryl and C _1-10 heteroaryl; wherein the aryl or heteroaryl is halo, cyano, C _1-6 alkyl, C _1-6 alkoxy, halo substituted C _1-6 alkyl, halo-substituted C _1-6 alkoxy, C _6-10 aryl-C _0-4 alkyl, heteroaryl, heterocyclyl, —X ₂ NR _5a R _5b , —X ₂ NR _5a OR _5b , — _{X 2 C (O) R 5a} , -X 2 S (O) 0-2 R 5a, -X 2 OX 3 R 5a, -X 2 R 5a, -X 2 C (O) OR 5a, -X 2 OR Substituted with 1 to 3 radicals independently selected from _5a and —X ₂ OX ₃ OR _5a ; wherein X ₂ and X ₃ are independently selected from a bond and C _1-4 alkylene is; and R _a and _{R 5b} is _{hydrogen, C 1-6 alkyl,} each independently selected from _{C 3-12 cycloalkyl, C 1-10} heteroaryl and _{C 3-12} heterocycloalkyl;
Wherein the aryl or heteroarylene Le location substituent of _{R 3} is optionally halo, hydroxy, _{cyano, C 1-6 alkyl, C 1-6} alkoxy, halo-substituted _{C 1-6} alkyl, halo-substituted and _{C 1-6 alkoxy, -X 4 oR 6, -X 4} C (O) oR 6, -X 4 C (O) NR 6 R 6 and _-X 4 1 to 3 selected from _{R 6} independently Wherein X ₄ is selected from a bond and C _1-4 alkylene; and R ₆ is selected from hydrogen, C _1-6 alkyl and C _3-12 heterocycloalkyl Done;
The compound of claim 1. R ₁ is hydrogen, pyrrolidinyl, morpholino, methoxy, 2-fluoro - is selected from ethoxy and _methyl; or _{R 2a} and _{R 2b} are hydrogen; or _{R 1} and _{R 2a} is _{R 1} and _{R 2a} are bonded 3. A compound according to claim 2 which forms a phenyl together with the carbon atoms present. R ₃ is selected from phenyl substituted with a group selected from difluoromethoxy, hydroxy-methyl, trifluoromethoxy, methyl-sulfonyl, methoxy and ethoxy; and 2,3-dihydrobenzofuran-5-yl. Item 4. The compound according to Item 3.   {5- [5- (3-Difluoromethoxy-phenyl) -2H- [1,2,4] triazol-3-yl] -2-methyl-phenyl}-(4-pyridin-3-yl-pyrimidine-2 -Yl) -amine; N- (2-methyl-5- (5- (3- (trifluoromethoxy) phenyl) -1H-1,2,4-triazol-3-yl) phenyl) -4- (pyridine -3-yl) pyrimidin-2-amine; N- (2-methyl-5- (5- (3- (methylsulfonyl) phenyl) -1H-1,2,4-triazol-3-yl) phenyl)- 4- (Pyridin-3-yl) pyrimidin-2-amine; N- (5- (5- (3-methoxyphenyl) -1H-1,2,4-triazol-3-yl) -2-methylphenyl) -4- (pyridin-3-yl) pyrimidin-2-amine; N- (5- (5- (3-ethoxyphenyl) -1H-1,2, 4-triazol-3-yl) -2-methylphenyl) -4- (pyridin-3-yl) pyrimidin-2-amine; N- (5- (5- (2,3-dihydrobenzofuran-5-yl) -1H-1,2,4-triazol-3-yl) -2-methylphenyl) -4- (pyridin-3-yl) pyrimidin-2-amine; N- (5- (5- (4- (difluoro (Methoxy) phenyl) -1H-1,2,4-triazol-3-yl) -2-methylphenyl) -4- (pyridin-3-yl) pyrimidin-2-amine; and (3- (3- (4 -Methyl-3- (4- (pyridin-3-yl) pyrimidin-2-ylamino) phenyl) -1H-1,2,4-triazol-5-yl) phenyl) methanol The described compound.